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Finding the Fourth Proportional to 611,070.48, 915,278.94 and 373,693.50

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Solution

The fourth proportional to 611,070.48, 915,278.94 and 373,693.50 is: 559,728.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,070.48 : 915,278.94 = 373,693.50 : x
  2. Step 2: Convert to fraction form
    611,070.48/915,278.94 = 373,693.50/x
  3. Step 3: Cross multiply
    611,070.48x = 915,278.94 × 373,693.50
  4. Step 4: Simplify right side
    611,070.48x = 342,033,790,564.89
  5. Step 5: Solve for x
    x = 342,033,790,564.89/611,070.48
  6. Step 6: Final answer
    x = 559,728.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.